This is similar to What does zero-sized array allocation do/mean?
I have following code
int *p = new int[0];
delete []p;
p gets an address and gets deleted properly.
My question is: Why allocation of zero bytes is allowed by c++ Standard in the first place? Why doesn't it throw bad_alloc or some special exception ?
I think, It is just postponing the catastrophic failure, making programmer's life difficult. Because if size to be allocated is calculated at run time and if programmer assumes its allocated properly and tries to write something to that memory, ends up corrupting memory !!! and Crash may happen some where else in the code.
EDIT: How much memory it allocates upon zero size request ?